AAVSO Sudden Ionospheric Disturbance Report March 2025 Observers: A118 A119 A131 A136 A138 A141 A148 A152 A153 A154 A96 A97 YYMMDD Event Peak Importance 250301 0830 1- 250301 0932 1- A118 - XRA 250301 1016 1- 250301 1323 3+ A118 - XRA 250301 1437 1- 250301 2302 1+ 250302 0939 1- 250302 2048 1- 250303 1025 1- A118 - XRA 250304 1352 1 A118 - XRA 250304 1545 1 250304 1622 1- 250304 2051 2 250305 1150 1 250307 2056 1+ 250307 2059 2 250308 0816 1+ A136 - XRA 250308 0900 1- A136 - XRA 250308 1226 1 250308 1414 1 250309 1435 1- A97 - XRA 250309 1719 1 A97 - QUAL 250311 1305 1 250311 1829 1 250311 1854 3+ A138 - QUAL 250311 1912 1 250311 2007 2+ A138 - QUAL 250311 2122 1 250312 0732 1- A152 - XRA 250312 0738 1- A96 - XRA 250312 0948 1 250312 1218 1 250312 1226 2 250312 1318 3 A118 - QUAL 250312 1457 1 250312 1840 1- 250312 1955 2+ A148 - XRA 250312 2136 1- 250313 0752 1- 250313 1448 1- 250313 1743 1 A97 - XRA 250313 1928 2+ A138 - XRA 250313 1935 2 A97 - XRA 250313 2219 1 A148 - XRA 250314 0719 1+ A96 - XRA 250314 1130 1 250314 1249 1- A118 - XRA 250314 1427 1 250314 1548 2 A97 - XRA 250314 2225 2 250315 1310 1- 250315 1738 1+ 250316 0801 1- 250316 1514 1 A97 - XRA 250316 2229 1+ 250317 0817 1- A96 - XRA 250317 1430 1- 250317 1600 2 250317 1918 2 250317 1929 1 250318 1544 1- A154 - QUAL 250319 1133 2 250319 1639 1- A148 - XRA 250319 1645 1+ A97 - XRA 250319 2039 2+ 250320 0726 1- A154 - XRA 250320 1651 1- A154 - QUAL 250320 1713 2+ A97 - XRA 250321 1516 1- A154 - QUAL 250321 1555 2 250321 1605 2+ 250322 1457 1- A96 - FLA 250322 1621 1- A96 - QUAL 250322 1728 2 250323 1027 1- 250323 1426 1+ 250323 2113 1 A148 - XRA 250324 0737 1- 250324 1333 1 250325 0857 1 250325 0948 1 250325 1229 1+ 250325 1929 1- A148 - FLA 250325 2046 1- 250326 0723 1- A136 - XRA 250326 0808 1+ 250326 0913 1 250326 1154 1- 250326 1333 1- 250326 1923 2 250326 2039 1+ A148 - XRA 250327 0921 1 250327 0958 2 250327 1120 1+ A96 - FLA 250327 1425 1- A118 - XRA 250327 1551 1+ 250327 2224 1 250327 2251 1- A153 - XRA 250328 1326 1 250328 1402 1 250328 1513 2+ 250328 1522 2+ 250328 1802 1+ 250328 1839 2+ A141 - QUAL 250328 1926 1+ 250328 2340 2 A148 - XRA 250329 0952 1- A118 - QUAL 250329 1021 1- 250329 1112 1- 250329 1201 2 250329 1709 1- A153 - XRA 250329 1732 1+ 250329 1804 1 250329 1852 1+ 250329 1913 1- 250329 2008 1 250329 2037 1- 250329 2134 2 250329 2229 1+ A153 - QUAL 250329 2254 1+ 250329 2326 2 A141 - QUAL 250330 1011 2 250330 1128 1- 250330 1155 1+ 250330 1230 2 250330 1237 2 250330 1546 1 250330 1641 1+ 250330 1707 1+ 250330 1854 1 A97 - XRA 250330 1943 1+ 250330 2111 1- 250330 2253 1+ 250330 2323 2 A138 - XRA 250331 0727 1- A96 - XRA 250331 0929 1- 250331 1005 1- 250331 1024 2 250331 1209 1 250331 1212 1- 250331 1257 1- A152 - QUAL 250331 1257 1- A152 - QUAL 250331 1637 1- 250331 1747 1 250331 2157 1- A148 - XRA 250331 2157 1- A148 - XRA ************************************************** Importance Summary - Mar 2025 1- events: 54 1 events: 34 1+ events: 24 2 events: 22 2+ events: 9 3 events: 1 3+ events: 2 ------------------ Total events: 146